A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT
ABSTRACT The presence of non-thermal electrons and large-scale magnetic fields in the intracluster medium is known through the detection of megaparsec (Mpc) scale diffuse radio synchrotron emission. Although a significant amount of progress in finding new diffuse radio sources has happened in the la...
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Online Access: | http://dx.doi.org/10.1093/mnras/staa3432 http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/staa3432/34135988/staa3432.pdf http://academic.oup.com/mnras/article-pdf/500/2/2236/34497918/staa3432.pdf |
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croxfordunivpr:10.1093/mnras/staa3432 2023-05-15T18:22:43+02:00 A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT Raja, Ramij Rahaman, Majidul Datta, Abhirup van Weeren, Reinout J Intema, Huib T Paul, Surajit IIT Indore Tata Institute of Fundamental Research DST-SERB DST CDS 2020 http://dx.doi.org/10.1093/mnras/staa3432 http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/staa3432/34135988/staa3432.pdf http://academic.oup.com/mnras/article-pdf/500/2/2236/34497918/staa3432.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Monthly Notices of the Royal Astronomical Society volume 500, issue 2, page 2236-2249 ISSN 0035-8711 1365-2966 Space and Planetary Science Astronomy and Astrophysics journal-article 2020 croxfordunivpr https://doi.org/10.1093/mnras/staa3432 2022-12-29T15:31:16Z ABSTRACT The presence of non-thermal electrons and large-scale magnetic fields in the intracluster medium is known through the detection of megaparsec (Mpc) scale diffuse radio synchrotron emission. Although a significant amount of progress in finding new diffuse radio sources has happened in the last decade, most of the investigation has been constrained towards massive low-redshift clusters. In this work, we explore clusters with redshift z > 0.3 in search of diffuse radio emission, at 325 MHz with the Giant Metrewave Radio Telescope. This campaign has resulted in the discovery of two new radio haloes (SPT-CL J0013−4906 and SPT-CL J0304−4401) along with two other detections (SPT-CL J2031−4037 and SPT-CL J2248−4431), previously reported (at 325 MHz) in the literature. In addition, we detect a halo candidate in one cluster in our sample, and upper limits for haloes are placed in eight clusters where no diffuse emission is detected. In the P1.4–LX plane, the detected haloes follow the observed correlation, whereas the upper limits lie above the correlation line, indicating the possibility of future detection with sensitive observations. Article in Journal/Newspaper South pole Oxford University Press (via Crossref) South Pole Monthly Notices of the Royal Astronomical Society 500 2 2236 2249 |
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Open Polar |
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Oxford University Press (via Crossref) |
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English |
topic |
Space and Planetary Science Astronomy and Astrophysics |
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Space and Planetary Science Astronomy and Astrophysics Raja, Ramij Rahaman, Majidul Datta, Abhirup van Weeren, Reinout J Intema, Huib T Paul, Surajit A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT |
topic_facet |
Space and Planetary Science Astronomy and Astrophysics |
description |
ABSTRACT The presence of non-thermal electrons and large-scale magnetic fields in the intracluster medium is known through the detection of megaparsec (Mpc) scale diffuse radio synchrotron emission. Although a significant amount of progress in finding new diffuse radio sources has happened in the last decade, most of the investigation has been constrained towards massive low-redshift clusters. In this work, we explore clusters with redshift z > 0.3 in search of diffuse radio emission, at 325 MHz with the Giant Metrewave Radio Telescope. This campaign has resulted in the discovery of two new radio haloes (SPT-CL J0013−4906 and SPT-CL J0304−4401) along with two other detections (SPT-CL J2031−4037 and SPT-CL J2248−4431), previously reported (at 325 MHz) in the literature. In addition, we detect a halo candidate in one cluster in our sample, and upper limits for haloes are placed in eight clusters where no diffuse emission is detected. In the P1.4–LX plane, the detected haloes follow the observed correlation, whereas the upper limits lie above the correlation line, indicating the possibility of future detection with sensitive observations. |
author2 |
IIT Indore Tata Institute of Fundamental Research DST-SERB DST CDS |
format |
Article in Journal/Newspaper |
author |
Raja, Ramij Rahaman, Majidul Datta, Abhirup van Weeren, Reinout J Intema, Huib T Paul, Surajit |
author_facet |
Raja, Ramij Rahaman, Majidul Datta, Abhirup van Weeren, Reinout J Intema, Huib T Paul, Surajit |
author_sort |
Raja, Ramij |
title |
A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT |
title_short |
A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT |
title_full |
A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT |
title_fullStr |
A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT |
title_full_unstemmed |
A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT |
title_sort |
low-frequency radio halo survey of the south pole telescope sz-selected clusters with the gmrt |
publisher |
Oxford University Press (OUP) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1093/mnras/staa3432 http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/staa3432/34135988/staa3432.pdf http://academic.oup.com/mnras/article-pdf/500/2/2236/34497918/staa3432.pdf |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Monthly Notices of the Royal Astronomical Society volume 500, issue 2, page 2236-2249 ISSN 0035-8711 1365-2966 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/mnras/staa3432 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
500 |
container_issue |
2 |
container_start_page |
2236 |
op_container_end_page |
2249 |
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1766202125168148480 |